Phys. Rev. Lett. 91, 144301 (2003) [4 pages]

Granular Elasticity without the Coulomb Condition

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Yimin Jiang1,2 * and Mario Liu1
1Theoretische Physik, Universität Tübingen, 72076 Tübingen, Germany
2Applied Physics and Heat-Engineering, Central South University, Changsha 410083, China

Received 28 June 2002; published 29 September 2003

A self-contained elastic theory is derived which accounts both for mechanical yield and shear-induced volume dilatancy. Its two essential ingredients are thermodynamic instability and the dependence of the elastic moduli on compression.


©2003 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v91/e144301
DOI: 10.1103/PhysRevLett.91.144301
PACS: 45.70.Cc, 81.05.Rm, 81.40.Jj

* Electronic address: yimin.jiang@uni-tuebingen.de
Electronic address: mliu@uni-tuebingen.de

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